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kryptonite
[ krip-tuh-nahyt ]
noun
- Usually Kryptonite. a fictional radioactive substance that is the only thing capable of hurting or weakening the otherwise invulnerable superhero Superman:
Exposure to Kryptonite nullifies Superman's powers and immobilizes him with pain.
- Sometimes Kryptonite. something that a person or thing cannot defend against or defeat; a nemesis or bête noire:
The team has not found a way to stop the triple option attack, which has been their kryptonite over the last several years.
Garlic oil is kryptonite for aphids.
˜yÐÄvlog History and Origins
Origin of kryptonite1
Example Sentences
Typically such projects have been imbued with the view that government was a kind of kryptonite that weakened entrepreneurialism.
The only real customer base was well-heeled liberals, and having Trump and Hannity endorse the car is kryptonite, and rightfully so.
"The chaos that tariffs leave in their wake is kryptonite for investment," Mr Murphy Cruise says.
A talented athlete, the green shirt is his kryptonite and he is not alone in that.
Mike Tomlin seemed to be MVP candidate Lamar Jackson's kryptonite, but the wheels came off Pittsburgh's season down the stretch.
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